package chapter01;

import java.util.Scanner;

public class Test13_Day2 {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        System.out.println("请输入年月");
        int year = scanner.nextInt();
        int month = scanner.nextInt();
        boolean flag = year%4==0&&year%100!=0||year%400==0;
        switch (month){
            case 1:
            case 3:
            case 5:
            case 7:
            case 8:
            case 10:
            case 12:
                System.out.println("该月为31天");
                break;
            case 4:
            case 6:
            case 9:
            case 11:
                System.out.println("该月为30天");
            case 2:
                if(flag){
                    System.out.println("该月为29天");
                }else{
                    System.out.println("该月为28天");
                }
                break;
            default:
                System.out.println("输入不合法");
                break;
        }
    }
}
